Buy & Swap UNUS SED LEO (LEO)

$10.06+1.12% (24h)ERC20 network

UNUS SED LEO (LEO) can be swapped instantly on SwapRocket — no account, no KYC and zero added fees. Compare live LEO rates from every connected provider and receive funds in your own wallet in minutes.

Swap LEO instantly — no KYC

LEO / USD — 24H chart

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Live market data · extended history unavailable for this asset

24h1.12%

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UNUS SED LEO statistics

Market cap$9.26B

Fully diluted market cap—

24h volume$443.57K

Circulating supply920.52M LEO

Max supply∞

Total supply—

All-time high$15.09

Market dominance—

Rank—

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Non-custodial

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About UNUS SED LEO (LEO)

Crypto token

UNUS SED LEO (LEO) is a crypto token on the ERC20 network. It powers its project's ecosystem — used for things like access, governance, fees, or rewards — and trades freely against other digital assets.

How does LEO work?

UNUS SED LEO runs as a token on the ERC20 network, which means it benefits from that chain's security and tooling while serving the specific role its project defines — for example governance votes, platform fees, staking, or in-app utility.

What is LEO used for?

Holders use LEO to participate in the UNUS SED LEO ecosystem and to gain exposure to the project's growth. As with any token, its value is tied to real usage and demand for what the project offers.

How to buy or swap LEO on SwapRocket

Pick LEO as the asset you want to receive.
Choose which crypto you're paying with.
SwapRocket compares every connected exchange and surfaces the best rate.
Paste your wallet address and confirm — funds arrive in minutes.

UNUS SED LEO (LEO) swap profile

This profile explains how UNUS SED LEO swaps work on SwapRocket: the network LEO settles on, what an exchange costs, how long it usually takes, and which pairs are published. Rates are aggregated live from every connected provider and shown in full before you commit to anything.

LEO key facts

Ticker: LEO
Settlement network: ERC20
Category: Crypto token
Custody: Non-custodial — coins move from the provider straight to your wallet
Cost to you: Zero added fees; you see the provider rate
Verification: No KYC for crypto-to-crypto swaps
Typical completion: Most swaps finish in under 10 minutes
Rate options: Best rate, fastest route or fixed rate
Published pairs: 0 published LEO pairs

How a LEO swap works

Enter the amount you want to exchange, pick the asset on the other side, and SwapRocket queries every connected exchange partner at once. You choose an offer, paste the wallet address that should receive the funds, and send LEO to the deposit address shown. The partner executes the trade and pays out to your address — SwapRocket never holds your coins, and there is no account to create before you start.

Choosing a rate for LEO

Three offers are presented for every LEO exchange. The best rate returns the largest amount for the size you entered. The fastest route favours the partner with the shortest expected settlement time, which matters when the market is moving. The fixed rate locks the quoted amount for the duration of the order, so what you are shown is what arrives, at the cost of a slightly smaller payout. Floating offers can move with the market between deposit and settlement.

Networks and addresses for LEO

UNUS SED LEO settles on ERC20. Always send from and to an address on that network: a deposit sent over a different chain cannot be recovered by the exchange partner. When an asset exists on several chains, pick the matching network in the widget before copying the deposit address, and send a small test amount first if you are unsure.

What is LEO? · Sourced guide · Updated 2026-09-23 · 10 sources cited

When an exchange issues its own token on two separate blockchains and commits to buying it back with its own revenue, what does that dependence on a single issuer actually change for the person holding it?

UNUS SED LEO began with a private sale by iFinex, the parent of the Bitfinex exchange, in May 2019. Its whitepaper paired exchange utility with a mechanism for iFinex to buy tokens back and destroy them. Everything distinctive about LEO — dual issuance on Ethereum and EOS, the later transition of that EOS side to Vaulta, and a public dashboard that logs burn transactions — follows from that founding structure. Its supply-management pace and technical homes therefore remain closely connected to decisions made by one company and the on-chain record those decisions produce.

A private sale, not a public mine or stake

UNUS SED LEO was created by Unus Sed Leo Limited, a subsidiary iFinex formed to issue it, and sold privately to qualifying purchasers in May 2019. The whitepaper describes LEO as a utility token for iFinex trading platforms and services, with no public mining, staking or open validator process involved in how its initial supply came into existence.

The launch supply was defined by the issuer's private placement rather than by a recurring protocol issuance schedule. That initial issuance is the baseline against which later burns are measured, while the current supply is better read from the dated transparency dashboard than copied into narrative text that can become stale.^{[1], [2], [3]}

One token, two chains, and a company acting as the bridge

Rather than picking one blockchain, iFinex issued LEO simultaneously on Ethereum, as an ERC-20 token, and on EOS, describing this as a deliberate dual-protocol launch meant to give holders flexibility and to support integration with both of iFinex's Ethereum- and EOS-based trading venues at the time. At the point of deployment, 660 million ERC-20 LEO and 340 million EOS-based LEO were issued across the two chains.

Bitfinex itself functions as the conversion point between the two versions: a holder deposits LEO on one chain and withdraws the equivalent amount on the other, with the exchange adjusting its own cold-wallet balances to keep the combined supply consistent. That convertibility depends on Bitfinex continuing to operate and honor the swap, which makes the exchange, not a smart contract or a cross-chain protocol, the mechanism holding the two-chain design together.^{[4], [3]}

The EOS side becomes Vaulta

The EOS-based half of LEO's supply sat on the EOS mainnet for six years, using EOS's account and token-transfer model, until the underlying EOS network itself was rebranded. On June 18, 2025, tokens that had existed on EOS, including EOS-based LEO, were carried over onto the renamed Vaulta chain, and Bitfinex's own support documentation now describes LEO as issued on the Vaulta and ERC-20 blockchains, with the two versions convertible on the exchange exactly as the Ethereum and EOS versions were before.

For a holder, that rebrand did not change LEO's economics or its total supply; it changed which network and wallet software the non-Ethereum LEO tokens sit on, and it means any address or exchange documentation referring to LEO's EOS chain now refers to the same asset under the Vaulta name.^{[5], [8], [9]}

A published, transaction-level burn record

On June 14, 2019, iFinex activated what it called the UNUS SED LEO Transparency Initiative: a mechanism under which iFinex uses a defined share of its own gross revenue to buy LEO back from the market on an ongoing basis and destroy the purchased tokens, alongside a public dashboard at leo.bitfinex.com showing the burns as they happen. The white paper's redemption terms also route recovered funds connected to two specific matters — the Crypto Capital funds and the 2016 Bitfinex security breach — into additional token buybacks and burns, on top of the revenue-funded mechanism.

The dashboard itself lists each burn as a discrete, dated blockchain transaction with its own transaction hash, rather than only a periodic summary figure, so an outside reader can check any individual burn against the chain it happened on. It also tracks running totals for circulating and burned supply, which is why the total supply of LEO today is lower than the 1,000,000,000 tokens issued in 2019.^{[6], [7], [10]}

A redemption schedule that one company controls end to end

The burn mechanism's pace is tied to iFinex's own gross revenue and to the timing of any recoveries connected to Crypto Capital and the 2016 breach, both of which are figures iFinex reports rather than figures fixed in advance by protocol code. That means the rate at which LEO's supply shrinks depends on the exchange's ongoing business performance and on the outcome of matters outside the token itself, not on a schedule a holder can verify independently of iFinex's own reporting.

The dual-chain and now dual-chain-plus-Vaulta structure also means LEO's supply record lives across more than one ledger, reconciled by the issuer converting between them. The per-transaction burn dashboard lets anyone check an individual burn against its underlying chain, but the totals it reports, and the revenue percentage they are drawn from, are figures iFinex compiles and publishes about itself, which is a different kind of verification than a fully on-chain, protocol-enforced issuance cap.^{[6], [7]}

What this means when you hold or swap LEO

Because LEO exists as separate ERC-20 and Vaulta versions, always confirm which network a deposit address or withdrawal is using before sending funds — an ERC-20 address will not receive a Vaulta-network transfer and vice versa, and Vaulta transfers, like the EOS transfers before them, commonly require a memo or tag to be credited correctly, so include exactly the memo a platform requests.

Because the circulating supply changes as burns proceed, figures like total or circulating supply are only accurate as of the date they were checked; the leo.bitfinex.com dashboard is the primary place to see the current totals and the individual burn transactions behind them, rather than relying on a fixed number carried over from an older summary.

Sources and evidence (10)

[1] iFinex published the UNUS SED LEO white paper describing the token's sale, purpose, and redemption mechanism. Bitfinex — Initial Exchange Offering of LEO Tokens white paper · 2019-05-08 · verified 2026-09-23 Confirmed
[2] iFinex formed the subsidiary Unus Sed Leo Limited to sell up to one billion USDt of newly created LEO tokens in a private sale. Bitfinex — iFinex Announces Private Sale of LEO Token · 2019-05-10 · verified 2026-09-23 Confirmed
[3] The private sale of 100% of outstanding LEO tokens, priced at 1 USDt per token with no discounts, was completed within a week, with total and circulating supply set at 1,000,000,000. PR Newswire — Bitfinex Presents Unus Sed Leo Transparency Initiative · 2019-06-14 · verified 2026-09-23 Confirmed
[4] LEO launched as a dual-protocol token, issuing 660 million ERC-20 tokens on Ethereum and 340 million tokens on EOS, convertible into each other through Bitfinex. Bitfinex — Unus Sed Leo Launches On Ethereum & EOS · 2019-05-22 · verified 2026-09-23 Confirmed
[5] LEO is issued on the Vaulta and ERC-20 blockchains, convertible on Bitfinex; EOS-based tokens were rebranded onto Vaulta on June 18, 2025. Bitfinex Help Center — Unus Sed LEO (LEO) · verified 2026-09-23 Confirmed
[6] iFinex launched the UNUS SED LEO Transparency Initiative on June 14, 2019, committing gross revenue and specified recovered funds to buy back and burn LEO, with a public dashboard at leo.bitfinex.com. Bitfinex — Bitfinex Presents 'UNUS SED LEO Transparency Initiative' · 2019-06-14 · verified 2026-09-23 Confirmed
[7] The LEO Transparency Dashboard lists total supply, burned supply, and individual dated burn transactions with transaction hashes. iFinex — UNUS SED LEO Transparency Dashboard · verified 2026-09-23 Confirmed
[8] EOS Network announced its rebrand to Vaulta on March 18, 2025, with an official token transition planned for that year. PR Newswire — EOS Rebrands to Vaulta, Announces Strategic Shift to Web3 Banking · 2025-03-18 · verified 2026-09-23 Confirmed
[9] Vaulta's token swap from EOS opened on May 14, 2025, converting EOS-based tokens to the Vaulta network at a 1:1 ratio without a fork or state reset. Vaulta — $A Is Live: Vaulta's Token Swap from $EOS Now Open · 2025-05-14 · verified 2026-09-23 Confirmed
[10] Independent reporting confirmed the June 2019 launch of the LEO burn mechanism and its stated use of iFinex revenue to buy back and destroy tokens. CoinDesk — Bitfinex Is Starting to Buy Back and 'Burn' Its LEO Exchange Token · 2019-06-14 · verified 2026-09-23 Confirmed

Profile last reviewed 2026-09-23. Historical background only — not investment advice.

Fees and pricing

Zero added fees: SwapRocket does not add a platform fee, a minimum or a withdrawal charge — the rate you see is the rate you get. Blockchain network fees are shown in full before you confirm, and the final amount you receive is quoted up front.

SwapRocket does not add a separate fee or markup to the provider quote. SwapRocket may earn a commission from the liquidity provider when a completed swap is referred through our platform. Provider spreads and applicable network costs are reflected in the quoted amount.

Network fees are set by the blockchain, not by SwapRocket. No account, no subscription and no withdrawal charge. Live support is available 24/7.

LEO swap FAQ

How do I swap UNUS SED LEO (LEO) instantly on SwapRocket?

Pick LEO as the asset you want to receive, choose what you're paying with, paste your wallet address, and confirm. SwapRocket hands your order to the provider whose quote pays out the most at that moment, and most swaps complete in under 10 minutes — no SwapRocket account needed.

Can I swap LEO with no KYC?

No SwapRocket account or identity documents are needed to start a crypto-to-crypto swap of LEO. The provider that executes the swap may still request identity verification or hold a swap for review under its own AML and sanctions policy, regardless of amount. Selling to a bank account goes through a regulated payment partner that verifies the payer; card purchases on SwapRocket are coming soon.

Is swapping UNUS SED LEO on SwapRocket non-custodial?

Yes. SwapRocket never holds your funds. The provider that executes the swap receives your deposit, holds it only for the duration of the swap, and sends LEO to the wallet address you provide.

Which network does LEO use here?

SwapRocket supports UNUS SED LEO on the ERC20 network. Always double-check that your receiving wallet supports this network before confirming.

What fees apply when I swap LEO?

SwapRocket adds no fee or markup to the provider's quote and may earn a commission from the provider on a completed swap. The provider's spread and any network cost it deducts on delivery are already reflected in the LEO amount shown; the network fee your own wallet charges to send the deposit is separate. Spreads vary by provider, pair and size, so compare the quoted receive amount.

More on fees, limits, KYC and timing: read the full crypto swap FAQ.